https://www.npdlink.com/product/orig...0000%26year%3D
Ford PN: 4R3Z-4022-AA
Anyone have experience or stories about this little bugger?
I was doing a little research and I read this little thing can get messed/gunked up over time which can cause excess pressure in the rear end on hot days and long drives. When that happens, some folks see tiny leaks out of their pinion seals etc...
I have a small intermittent seep out of my pinion seal, and the more I thought about it the more I realized I only see it during the middle of the summer or long spirited drives. I ordered one of these and am crossing my fingers that a quick little $10 piece will take care of it. I will be super happy if it's just that simple and don't have to worry about getting the rear end serviced.
I didn't know this piece existed until a couple nights ago, but it sort of makes sense!
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